1/****************************************************************************** 2 * 3 * This file is provided under a dual BSD/GPLv2 license. When using or 4 * redistributing this file, you may do so under either license. 5 * 6 * GPL LICENSE SUMMARY 7 * 8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 9 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 10 * 11 * This program is free software; you can redistribute it and/or modify 12 * it under the terms of version 2 of the GNU General Public License as 13 * published by the Free Software Foundation. 14 * 15 * This program is distributed in the hope that it will be useful, but 16 * WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 * General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License 21 * along with this program; if not, write to the Free Software 22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, 23 * USA 24 * 25 * The full GNU General Public License is included in this distribution 26 * in the file called COPYING. 27 * 28 * Contact Information: 29 * Intel Linux Wireless <ilw@linux.intel.com> 30 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 31 * 32 * BSD LICENSE 33 * 34 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved. 35 * Copyright(c) 2013 - 2014 Intel Mobile Communications GmbH 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 42 * * Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * * Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in 46 * the documentation and/or other materials provided with the 47 * distribution. 48 * * Neither the name Intel Corporation nor the names of its 49 * contributors may be used to endorse or promote products derived 50 * from this software without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 53 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 54 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 55 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 56 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 57 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 58 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 59 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 60 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 61 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 62 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 63 * 64 *****************************************************************************/ 65#include <net/mac80211.h> 66 67#include "iwl-debug.h" 68#include "iwl-io.h" 69#include "iwl-prph.h" 70 71#include "mvm.h" 72#include "fw-api-rs.h" 73 74/* 75 * Will return 0 even if the cmd failed when RFKILL is asserted unless 76 * CMD_WANT_SKB is set in cmd->flags. 77 */ 78int iwl_mvm_send_cmd(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd) 79{ 80 int ret; 81 82#if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) 83 if (WARN_ON(mvm->d3_test_active)) 84 return -EIO; 85#endif 86 87 /* 88 * Synchronous commands from this op-mode must hold 89 * the mutex, this ensures we don't try to send two 90 * (or more) synchronous commands at a time. 91 */ 92 if (!(cmd->flags & CMD_ASYNC)) 93 lockdep_assert_held(&mvm->mutex); 94 95 ret = iwl_trans_send_cmd(mvm->trans, cmd); 96 97 /* 98 * If the caller wants the SKB, then don't hide any problems, the 99 * caller might access the response buffer which will be NULL if 100 * the command failed. 101 */ 102 if (cmd->flags & CMD_WANT_SKB) 103 return ret; 104 105 /* Silently ignore failures if RFKILL is asserted */ 106 if (!ret || ret == -ERFKILL) 107 return 0; 108 return ret; 109} 110 111int iwl_mvm_send_cmd_pdu(struct iwl_mvm *mvm, u8 id, 112 u32 flags, u16 len, const void *data) 113{ 114 struct iwl_host_cmd cmd = { 115 .id = id, 116 .len = { len, }, 117 .data = { data, }, 118 .flags = flags, 119 }; 120 121 return iwl_mvm_send_cmd(mvm, &cmd); 122} 123 124/* 125 * We assume that the caller set the status to the success value 126 */ 127int iwl_mvm_send_cmd_status(struct iwl_mvm *mvm, struct iwl_host_cmd *cmd, 128 u32 *status) 129{ 130 struct iwl_rx_packet *pkt; 131 struct iwl_cmd_response *resp; 132 int ret, resp_len; 133 134 lockdep_assert_held(&mvm->mutex); 135 136#if defined(CONFIG_IWLWIFI_DEBUGFS) && defined(CONFIG_PM_SLEEP) 137 if (WARN_ON(mvm->d3_test_active)) 138 return -EIO; 139#endif 140 141 /* 142 * Only synchronous commands can wait for status, 143 * we use WANT_SKB so the caller can't. 144 */ 145 if (WARN_ONCE(cmd->flags & (CMD_ASYNC | CMD_WANT_SKB), 146 "cmd flags %x", cmd->flags)) 147 return -EINVAL; 148 149 cmd->flags |= CMD_WANT_SKB; 150 151 ret = iwl_trans_send_cmd(mvm->trans, cmd); 152 if (ret == -ERFKILL) { 153 /* 154 * The command failed because of RFKILL, don't update 155 * the status, leave it as success and return 0. 156 */ 157 return 0; 158 } else if (ret) { 159 return ret; 160 } 161 162 pkt = cmd->resp_pkt; 163 /* Can happen if RFKILL is asserted */ 164 if (!pkt) { 165 ret = 0; 166 goto out_free_resp; 167 } 168 169 if (pkt->hdr.flags & IWL_CMD_FAILED_MSK) { 170 ret = -EIO; 171 goto out_free_resp; 172 } 173 174 resp_len = iwl_rx_packet_payload_len(pkt); 175 if (WARN_ON_ONCE(resp_len != sizeof(*resp))) { 176 ret = -EIO; 177 goto out_free_resp; 178 } 179 180 resp = (void *)pkt->data; 181 *status = le32_to_cpu(resp->status); 182 out_free_resp: 183 iwl_free_resp(cmd); 184 return ret; 185} 186 187/* 188 * We assume that the caller set the status to the sucess value 189 */ 190int iwl_mvm_send_cmd_pdu_status(struct iwl_mvm *mvm, u8 id, u16 len, 191 const void *data, u32 *status) 192{ 193 struct iwl_host_cmd cmd = { 194 .id = id, 195 .len = { len, }, 196 .data = { data, }, 197 }; 198 199 return iwl_mvm_send_cmd_status(mvm, &cmd, status); 200} 201 202#define IWL_DECLARE_RATE_INFO(r) \ 203 [IWL_RATE_##r##M_INDEX] = IWL_RATE_##r##M_PLCP 204 205/* 206 * Translate from fw_rate_index (IWL_RATE_XXM_INDEX) to PLCP 207 */ 208static const u8 fw_rate_idx_to_plcp[IWL_RATE_COUNT] = { 209 IWL_DECLARE_RATE_INFO(1), 210 IWL_DECLARE_RATE_INFO(2), 211 IWL_DECLARE_RATE_INFO(5), 212 IWL_DECLARE_RATE_INFO(11), 213 IWL_DECLARE_RATE_INFO(6), 214 IWL_DECLARE_RATE_INFO(9), 215 IWL_DECLARE_RATE_INFO(12), 216 IWL_DECLARE_RATE_INFO(18), 217 IWL_DECLARE_RATE_INFO(24), 218 IWL_DECLARE_RATE_INFO(36), 219 IWL_DECLARE_RATE_INFO(48), 220 IWL_DECLARE_RATE_INFO(54), 221}; 222 223int iwl_mvm_legacy_rate_to_mac80211_idx(u32 rate_n_flags, 224 enum ieee80211_band band) 225{ 226 int rate = rate_n_flags & RATE_LEGACY_RATE_MSK; 227 int idx; 228 int band_offset = 0; 229 230 /* Legacy rate format, search for match in table */ 231 if (band == IEEE80211_BAND_5GHZ) 232 band_offset = IWL_FIRST_OFDM_RATE; 233 for (idx = band_offset; idx < IWL_RATE_COUNT_LEGACY; idx++) 234 if (fw_rate_idx_to_plcp[idx] == rate) 235 return idx - band_offset; 236 237 return -1; 238} 239 240u8 iwl_mvm_mac80211_idx_to_hwrate(int rate_idx) 241{ 242 /* Get PLCP rate for tx_cmd->rate_n_flags */ 243 return fw_rate_idx_to_plcp[rate_idx]; 244} 245 246int iwl_mvm_rx_fw_error(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, 247 struct iwl_device_cmd *cmd) 248{ 249 struct iwl_rx_packet *pkt = rxb_addr(rxb); 250 struct iwl_error_resp *err_resp = (void *)pkt->data; 251 252 IWL_ERR(mvm, "FW Error notification: type 0x%08X cmd_id 0x%02X\n", 253 le32_to_cpu(err_resp->error_type), err_resp->cmd_id); 254 IWL_ERR(mvm, "FW Error notification: seq 0x%04X service 0x%08X\n", 255 le16_to_cpu(err_resp->bad_cmd_seq_num), 256 le32_to_cpu(err_resp->error_service)); 257 IWL_ERR(mvm, "FW Error notification: timestamp 0x%16llX\n", 258 le64_to_cpu(err_resp->timestamp)); 259 return 0; 260} 261 262/* 263 * Returns the first antenna as ANT_[ABC], as defined in iwl-config.h. 264 * The parameter should also be a combination of ANT_[ABC]. 265 */ 266u8 first_antenna(u8 mask) 267{ 268 BUILD_BUG_ON(ANT_A != BIT(0)); /* using ffs is wrong if not */ 269 if (WARN_ON_ONCE(!mask)) /* ffs will return 0 if mask is zeroed */ 270 return BIT(0); 271 return BIT(ffs(mask) - 1); 272} 273 274/* 275 * Toggles between TX antennas to send the probe request on. 276 * Receives the bitmask of valid TX antennas and the *index* used 277 * for the last TX, and returns the next valid *index* to use. 278 * In order to set it in the tx_cmd, must do BIT(idx). 279 */ 280u8 iwl_mvm_next_antenna(struct iwl_mvm *mvm, u8 valid, u8 last_idx) 281{ 282 u8 ind = last_idx; 283 int i; 284 285 for (i = 0; i < RATE_MCS_ANT_NUM; i++) { 286 ind = (ind + 1) % RATE_MCS_ANT_NUM; 287 if (valid & BIT(ind)) 288 return ind; 289 } 290 291 WARN_ONCE(1, "Failed to toggle between antennas 0x%x", valid); 292 return last_idx; 293} 294 295static const struct { 296 const char *name; 297 u8 num; 298} advanced_lookup[] = { 299 { "NMI_INTERRUPT_WDG", 0x34 }, 300 { "SYSASSERT", 0x35 }, 301 { "UCODE_VERSION_MISMATCH", 0x37 }, 302 { "BAD_COMMAND", 0x38 }, 303 { "NMI_INTERRUPT_DATA_ACTION_PT", 0x3C }, 304 { "FATAL_ERROR", 0x3D }, 305 { "NMI_TRM_HW_ERR", 0x46 }, 306 { "NMI_INTERRUPT_TRM", 0x4C }, 307 { "NMI_INTERRUPT_BREAK_POINT", 0x54 }, 308 { "NMI_INTERRUPT_WDG_RXF_FULL", 0x5C }, 309 { "NMI_INTERRUPT_WDG_NO_RBD_RXF_FULL", 0x64 }, 310 { "NMI_INTERRUPT_HOST", 0x66 }, 311 { "NMI_INTERRUPT_ACTION_PT", 0x7C }, 312 { "NMI_INTERRUPT_UNKNOWN", 0x84 }, 313 { "NMI_INTERRUPT_INST_ACTION_PT", 0x86 }, 314 { "ADVANCED_SYSASSERT", 0 }, 315}; 316 317static const char *desc_lookup(u32 num) 318{ 319 int i; 320 321 for (i = 0; i < ARRAY_SIZE(advanced_lookup) - 1; i++) 322 if (advanced_lookup[i].num == num) 323 return advanced_lookup[i].name; 324 325 /* No entry matches 'num', so it is the last: ADVANCED_SYSASSERT */ 326 return advanced_lookup[i].name; 327} 328 329/* 330 * Note: This structure is read from the device with IO accesses, 331 * and the reading already does the endian conversion. As it is 332 * read with u32-sized accesses, any members with a different size 333 * need to be ordered correctly though! 334 */ 335struct iwl_error_event_table_v1 { 336 u32 valid; /* (nonzero) valid, (0) log is empty */ 337 u32 error_id; /* type of error */ 338 u32 pc; /* program counter */ 339 u32 blink1; /* branch link */ 340 u32 blink2; /* branch link */ 341 u32 ilink1; /* interrupt link */ 342 u32 ilink2; /* interrupt link */ 343 u32 data1; /* error-specific data */ 344 u32 data2; /* error-specific data */ 345 u32 data3; /* error-specific data */ 346 u32 bcon_time; /* beacon timer */ 347 u32 tsf_low; /* network timestamp function timer */ 348 u32 tsf_hi; /* network timestamp function timer */ 349 u32 gp1; /* GP1 timer register */ 350 u32 gp2; /* GP2 timer register */ 351 u32 gp3; /* GP3 timer register */ 352 u32 ucode_ver; /* uCode version */ 353 u32 hw_ver; /* HW Silicon version */ 354 u32 brd_ver; /* HW board version */ 355 u32 log_pc; /* log program counter */ 356 u32 frame_ptr; /* frame pointer */ 357 u32 stack_ptr; /* stack pointer */ 358 u32 hcmd; /* last host command header */ 359 u32 isr0; /* isr status register LMPM_NIC_ISR0: 360 * rxtx_flag */ 361 u32 isr1; /* isr status register LMPM_NIC_ISR1: 362 * host_flag */ 363 u32 isr2; /* isr status register LMPM_NIC_ISR2: 364 * enc_flag */ 365 u32 isr3; /* isr status register LMPM_NIC_ISR3: 366 * time_flag */ 367 u32 isr4; /* isr status register LMPM_NIC_ISR4: 368 * wico interrupt */ 369 u32 isr_pref; /* isr status register LMPM_NIC_PREF_STAT */ 370 u32 wait_event; /* wait event() caller address */ 371 u32 l2p_control; /* L2pControlField */ 372 u32 l2p_duration; /* L2pDurationField */ 373 u32 l2p_mhvalid; /* L2pMhValidBits */ 374 u32 l2p_addr_match; /* L2pAddrMatchStat */ 375 u32 lmpm_pmg_sel; /* indicate which clocks are turned on 376 * (LMPM_PMG_SEL) */ 377 u32 u_timestamp; /* indicate when the date and time of the 378 * compilation */ 379 u32 flow_handler; /* FH read/write pointers, RX credit */ 380} __packed /* LOG_ERROR_TABLE_API_S_VER_1 */; 381 382struct iwl_error_event_table { 383 u32 valid; /* (nonzero) valid, (0) log is empty */ 384 u32 error_id; /* type of error */ 385 u32 pc; /* program counter */ 386 u32 blink1; /* branch link */ 387 u32 blink2; /* branch link */ 388 u32 ilink1; /* interrupt link */ 389 u32 ilink2; /* interrupt link */ 390 u32 data1; /* error-specific data */ 391 u32 data2; /* error-specific data */ 392 u32 data3; /* error-specific data */ 393 u32 bcon_time; /* beacon timer */ 394 u32 tsf_low; /* network timestamp function timer */ 395 u32 tsf_hi; /* network timestamp function timer */ 396 u32 gp1; /* GP1 timer register */ 397 u32 gp2; /* GP2 timer register */ 398 u32 gp3; /* GP3 timer register */ 399 u32 major; /* uCode version major */ 400 u32 minor; /* uCode version minor */ 401 u32 hw_ver; /* HW Silicon version */ 402 u32 brd_ver; /* HW board version */ 403 u32 log_pc; /* log program counter */ 404 u32 frame_ptr; /* frame pointer */ 405 u32 stack_ptr; /* stack pointer */ 406 u32 hcmd; /* last host command header */ 407 u32 isr0; /* isr status register LMPM_NIC_ISR0: 408 * rxtx_flag */ 409 u32 isr1; /* isr status register LMPM_NIC_ISR1: 410 * host_flag */ 411 u32 isr2; /* isr status register LMPM_NIC_ISR2: 412 * enc_flag */ 413 u32 isr3; /* isr status register LMPM_NIC_ISR3: 414 * time_flag */ 415 u32 isr4; /* isr status register LMPM_NIC_ISR4: 416 * wico interrupt */ 417 u32 isr_pref; /* isr status register LMPM_NIC_PREF_STAT */ 418 u32 wait_event; /* wait event() caller address */ 419 u32 l2p_control; /* L2pControlField */ 420 u32 l2p_duration; /* L2pDurationField */ 421 u32 l2p_mhvalid; /* L2pMhValidBits */ 422 u32 l2p_addr_match; /* L2pAddrMatchStat */ 423 u32 lmpm_pmg_sel; /* indicate which clocks are turned on 424 * (LMPM_PMG_SEL) */ 425 u32 u_timestamp; /* indicate when the date and time of the 426 * compilation */ 427 u32 flow_handler; /* FH read/write pointers, RX credit */ 428} __packed /* LOG_ERROR_TABLE_API_S_VER_2 */; 429 430/* 431 * UMAC error struct - relevant starting from family 8000 chip. 432 * Note: This structure is read from the device with IO accesses, 433 * and the reading already does the endian conversion. As it is 434 * read with u32-sized accesses, any members with a different size 435 * need to be ordered correctly though! 436 */ 437struct iwl_umac_error_event_table { 438 u32 valid; /* (nonzero) valid, (0) log is empty */ 439 u32 error_id; /* type of error */ 440 u32 blink1; /* branch link */ 441 u32 blink2; /* branch link */ 442 u32 ilink1; /* interrupt link */ 443 u32 ilink2; /* interrupt link */ 444 u32 data1; /* error-specific data */ 445 u32 data2; /* error-specific data */ 446 u32 data3; /* error-specific data */ 447 u32 umac_major; 448 u32 umac_minor; 449 u32 frame_pointer; /* core register 27*/ 450 u32 stack_pointer; /* core register 28 */ 451 u32 cmd_header; /* latest host cmd sent to UMAC */ 452 u32 nic_isr_pref; /* ISR status register */ 453} __packed; 454 455#define ERROR_START_OFFSET (1 * sizeof(u32)) 456#define ERROR_ELEM_SIZE (7 * sizeof(u32)) 457 458static void iwl_mvm_dump_umac_error_log(struct iwl_mvm *mvm) 459{ 460 struct iwl_trans *trans = mvm->trans; 461 struct iwl_umac_error_event_table table; 462 u32 base; 463 464 base = mvm->umac_error_event_table; 465 466 if (base < 0x800000) { 467 IWL_ERR(mvm, 468 "Not valid error log pointer 0x%08X for %s uCode\n", 469 base, 470 (mvm->cur_ucode == IWL_UCODE_INIT) 471 ? "Init" : "RT"); 472 return; 473 } 474 475 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 476 477 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { 478 IWL_ERR(trans, "Start IWL Error Log Dump:\n"); 479 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", 480 mvm->status, table.valid); 481 } 482 483 IWL_ERR(mvm, "0x%08X | %s\n", table.error_id, 484 desc_lookup(table.error_id)); 485 IWL_ERR(mvm, "0x%08X | umac branchlink1\n", table.blink1); 486 IWL_ERR(mvm, "0x%08X | umac branchlink2\n", table.blink2); 487 IWL_ERR(mvm, "0x%08X | umac interruptlink1\n", table.ilink1); 488 IWL_ERR(mvm, "0x%08X | umac interruptlink2\n", table.ilink2); 489 IWL_ERR(mvm, "0x%08X | umac data1\n", table.data1); 490 IWL_ERR(mvm, "0x%08X | umac data2\n", table.data2); 491 IWL_ERR(mvm, "0x%08X | umac data3\n", table.data3); 492 IWL_ERR(mvm, "0x%08X | umac major\n", table.umac_major); 493 IWL_ERR(mvm, "0x%08X | umac minor\n", table.umac_minor); 494 IWL_ERR(mvm, "0x%08X | frame pointer\n", table.frame_pointer); 495 IWL_ERR(mvm, "0x%08X | stack pointer\n", table.stack_pointer); 496 IWL_ERR(mvm, "0x%08X | last host cmd\n", table.cmd_header); 497 IWL_ERR(mvm, "0x%08X | isr status reg\n", table.nic_isr_pref); 498} 499 500static void iwl_mvm_dump_nic_error_log_old(struct iwl_mvm *mvm) 501{ 502 struct iwl_trans *trans = mvm->trans; 503 struct iwl_error_event_table_v1 table; 504 u32 base; 505 506 base = mvm->error_event_table; 507 if (mvm->cur_ucode == IWL_UCODE_INIT) { 508 if (!base) 509 base = mvm->fw->init_errlog_ptr; 510 } else { 511 if (!base) 512 base = mvm->fw->inst_errlog_ptr; 513 } 514 515 if (base < 0x800000) { 516 IWL_ERR(mvm, 517 "Not valid error log pointer 0x%08X for %s uCode\n", 518 base, 519 (mvm->cur_ucode == IWL_UCODE_INIT) 520 ? "Init" : "RT"); 521 return; 522 } 523 524 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 525 526 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { 527 IWL_ERR(trans, "Start IWL Error Log Dump:\n"); 528 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", 529 mvm->status, table.valid); 530 } 531 532 /* Do not change this output - scripts rely on it */ 533 534 IWL_ERR(mvm, "Loaded firmware version: %s\n", mvm->fw->fw_version); 535 536 trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low, 537 table.data1, table.data2, table.data3, 538 table.blink1, table.blink2, table.ilink1, 539 table.ilink2, table.bcon_time, table.gp1, 540 table.gp2, table.gp3, table.ucode_ver, 0, 541 table.hw_ver, table.brd_ver); 542 IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id, 543 desc_lookup(table.error_id)); 544 IWL_ERR(mvm, "0x%08X | uPc\n", table.pc); 545 IWL_ERR(mvm, "0x%08X | branchlink1\n", table.blink1); 546 IWL_ERR(mvm, "0x%08X | branchlink2\n", table.blink2); 547 IWL_ERR(mvm, "0x%08X | interruptlink1\n", table.ilink1); 548 IWL_ERR(mvm, "0x%08X | interruptlink2\n", table.ilink2); 549 IWL_ERR(mvm, "0x%08X | data1\n", table.data1); 550 IWL_ERR(mvm, "0x%08X | data2\n", table.data2); 551 IWL_ERR(mvm, "0x%08X | data3\n", table.data3); 552 IWL_ERR(mvm, "0x%08X | beacon time\n", table.bcon_time); 553 IWL_ERR(mvm, "0x%08X | tsf low\n", table.tsf_low); 554 IWL_ERR(mvm, "0x%08X | tsf hi\n", table.tsf_hi); 555 IWL_ERR(mvm, "0x%08X | time gp1\n", table.gp1); 556 IWL_ERR(mvm, "0x%08X | time gp2\n", table.gp2); 557 IWL_ERR(mvm, "0x%08X | time gp3\n", table.gp3); 558 IWL_ERR(mvm, "0x%08X | uCode version\n", table.ucode_ver); 559 IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver); 560 IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver); 561 IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd); 562 IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0); 563 IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1); 564 IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2); 565 IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3); 566 IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4); 567 IWL_ERR(mvm, "0x%08X | isr_pref\n", table.isr_pref); 568 IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event); 569 IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control); 570 IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration); 571 IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid); 572 IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match); 573 IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel); 574 IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp); 575 IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler); 576 577 if (mvm->support_umac_log) 578 iwl_mvm_dump_umac_error_log(mvm); 579} 580 581void iwl_mvm_dump_nic_error_log(struct iwl_mvm *mvm) 582{ 583 struct iwl_trans *trans = mvm->trans; 584 struct iwl_error_event_table table; 585 u32 base; 586 587 if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_NEW_VERSION)) { 588 iwl_mvm_dump_nic_error_log_old(mvm); 589 return; 590 } 591 592 base = mvm->error_event_table; 593 if (mvm->cur_ucode == IWL_UCODE_INIT) { 594 if (!base) 595 base = mvm->fw->init_errlog_ptr; 596 } else { 597 if (!base) 598 base = mvm->fw->inst_errlog_ptr; 599 } 600 601 if (base < 0x800000) { 602 IWL_ERR(mvm, 603 "Not valid error log pointer 0x%08X for %s uCode\n", 604 base, 605 (mvm->cur_ucode == IWL_UCODE_INIT) 606 ? "Init" : "RT"); 607 return; 608 } 609 610 iwl_trans_read_mem_bytes(trans, base, &table, sizeof(table)); 611 612 if (ERROR_START_OFFSET <= table.valid * ERROR_ELEM_SIZE) { 613 IWL_ERR(trans, "Start IWL Error Log Dump:\n"); 614 IWL_ERR(trans, "Status: 0x%08lX, count: %d\n", 615 mvm->status, table.valid); 616 } 617 618 /* Do not change this output - scripts rely on it */ 619 620 IWL_ERR(mvm, "Loaded firmware version: %s\n", mvm->fw->fw_version); 621 622 trace_iwlwifi_dev_ucode_error(trans->dev, table.error_id, table.tsf_low, 623 table.data1, table.data2, table.data3, 624 table.blink1, table.blink2, table.ilink1, 625 table.ilink2, table.bcon_time, table.gp1, 626 table.gp2, table.gp3, table.major, 627 table.minor, table.hw_ver, table.brd_ver); 628 IWL_ERR(mvm, "0x%08X | %-28s\n", table.error_id, 629 desc_lookup(table.error_id)); 630 IWL_ERR(mvm, "0x%08X | uPc\n", table.pc); 631 IWL_ERR(mvm, "0x%08X | branchlink1\n", table.blink1); 632 IWL_ERR(mvm, "0x%08X | branchlink2\n", table.blink2); 633 IWL_ERR(mvm, "0x%08X | interruptlink1\n", table.ilink1); 634 IWL_ERR(mvm, "0x%08X | interruptlink2\n", table.ilink2); 635 IWL_ERR(mvm, "0x%08X | data1\n", table.data1); 636 IWL_ERR(mvm, "0x%08X | data2\n", table.data2); 637 IWL_ERR(mvm, "0x%08X | data3\n", table.data3); 638 IWL_ERR(mvm, "0x%08X | beacon time\n", table.bcon_time); 639 IWL_ERR(mvm, "0x%08X | tsf low\n", table.tsf_low); 640 IWL_ERR(mvm, "0x%08X | tsf hi\n", table.tsf_hi); 641 IWL_ERR(mvm, "0x%08X | time gp1\n", table.gp1); 642 IWL_ERR(mvm, "0x%08X | time gp2\n", table.gp2); 643 IWL_ERR(mvm, "0x%08X | time gp3\n", table.gp3); 644 IWL_ERR(mvm, "0x%08X | uCode version major\n", table.major); 645 IWL_ERR(mvm, "0x%08X | uCode version minor\n", table.minor); 646 IWL_ERR(mvm, "0x%08X | hw version\n", table.hw_ver); 647 IWL_ERR(mvm, "0x%08X | board version\n", table.brd_ver); 648 IWL_ERR(mvm, "0x%08X | hcmd\n", table.hcmd); 649 IWL_ERR(mvm, "0x%08X | isr0\n", table.isr0); 650 IWL_ERR(mvm, "0x%08X | isr1\n", table.isr1); 651 IWL_ERR(mvm, "0x%08X | isr2\n", table.isr2); 652 IWL_ERR(mvm, "0x%08X | isr3\n", table.isr3); 653 IWL_ERR(mvm, "0x%08X | isr4\n", table.isr4); 654 IWL_ERR(mvm, "0x%08X | isr_pref\n", table.isr_pref); 655 IWL_ERR(mvm, "0x%08X | wait_event\n", table.wait_event); 656 IWL_ERR(mvm, "0x%08X | l2p_control\n", table.l2p_control); 657 IWL_ERR(mvm, "0x%08X | l2p_duration\n", table.l2p_duration); 658 IWL_ERR(mvm, "0x%08X | l2p_mhvalid\n", table.l2p_mhvalid); 659 IWL_ERR(mvm, "0x%08X | l2p_addr_match\n", table.l2p_addr_match); 660 IWL_ERR(mvm, "0x%08X | lmpm_pmg_sel\n", table.lmpm_pmg_sel); 661 IWL_ERR(mvm, "0x%08X | timestamp\n", table.u_timestamp); 662 IWL_ERR(mvm, "0x%08X | flow_handler\n", table.flow_handler); 663 664 if (mvm->support_umac_log) 665 iwl_mvm_dump_umac_error_log(mvm); 666} 667void iwl_mvm_enable_txq(struct iwl_mvm *mvm, int queue, u16 ssn, 668 const struct iwl_trans_txq_scd_cfg *cfg, 669 unsigned int wdg_timeout) 670{ 671 struct iwl_scd_txq_cfg_cmd cmd = { 672 .scd_queue = queue, 673 .enable = 1, 674 .window = cfg->frame_limit, 675 .sta_id = cfg->sta_id, 676 .ssn = cpu_to_le16(ssn), 677 .tx_fifo = cfg->fifo, 678 .aggregate = cfg->aggregate, 679 .tid = cfg->tid, 680 }; 681 682 if (!iwl_mvm_is_scd_cfg_supported(mvm)) { 683 iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, cfg, 684 wdg_timeout); 685 return; 686 } 687 688 iwl_trans_txq_enable_cfg(mvm->trans, queue, ssn, NULL, wdg_timeout); 689 WARN(iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, 0, sizeof(cmd), &cmd), 690 "Failed to configure queue %d on FIFO %d\n", queue, cfg->fifo); 691} 692 693void iwl_mvm_disable_txq(struct iwl_mvm *mvm, int queue, u8 flags) 694{ 695 struct iwl_scd_txq_cfg_cmd cmd = { 696 .scd_queue = queue, 697 .enable = 0, 698 }; 699 int ret; 700 701 if (!iwl_mvm_is_scd_cfg_supported(mvm)) { 702 iwl_trans_txq_disable(mvm->trans, queue, true); 703 return; 704 } 705 706 iwl_trans_txq_disable(mvm->trans, queue, false); 707 ret = iwl_mvm_send_cmd_pdu(mvm, SCD_QUEUE_CFG, flags, 708 sizeof(cmd), &cmd); 709 if (ret) 710 IWL_ERR(mvm, "Failed to disable queue %d (ret=%d)\n", 711 queue, ret); 712} 713 714/** 715 * iwl_mvm_send_lq_cmd() - Send link quality command 716 * @init: This command is sent as part of station initialization right 717 * after station has been added. 718 * 719 * The link quality command is sent as the last step of station creation. 720 * This is the special case in which init is set and we call a callback in 721 * this case to clear the state indicating that station creation is in 722 * progress. 723 */ 724int iwl_mvm_send_lq_cmd(struct iwl_mvm *mvm, struct iwl_lq_cmd *lq, bool init) 725{ 726 struct iwl_host_cmd cmd = { 727 .id = LQ_CMD, 728 .len = { sizeof(struct iwl_lq_cmd), }, 729 .flags = init ? 0 : CMD_ASYNC, 730 .data = { lq, }, 731 }; 732 733 if (WARN_ON(lq->sta_id == IWL_MVM_STATION_COUNT)) 734 return -EINVAL; 735 736 return iwl_mvm_send_cmd(mvm, &cmd); 737} 738 739/** 740 * iwl_mvm_update_smps - Get a request to change the SMPS mode 741 * @req_type: The part of the driver who call for a change. 742 * @smps_requests: The request to change the SMPS mode. 743 * 744 * Get a requst to change the SMPS mode, 745 * and change it according to all other requests in the driver. 746 */ 747void iwl_mvm_update_smps(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 748 enum iwl_mvm_smps_type_request req_type, 749 enum ieee80211_smps_mode smps_request) 750{ 751 struct iwl_mvm_vif *mvmvif; 752 enum ieee80211_smps_mode smps_mode; 753 int i; 754 755 lockdep_assert_held(&mvm->mutex); 756 757 /* SMPS is irrelevant for NICs that don't have at least 2 RX antenna */ 758 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) 759 return; 760 761 if (vif->type == NL80211_IFTYPE_AP) 762 smps_mode = IEEE80211_SMPS_OFF; 763 else 764 smps_mode = IEEE80211_SMPS_AUTOMATIC; 765 766 mvmvif = iwl_mvm_vif_from_mac80211(vif); 767 mvmvif->smps_requests[req_type] = smps_request; 768 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 769 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC) { 770 smps_mode = IEEE80211_SMPS_STATIC; 771 break; 772 } 773 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 774 smps_mode = IEEE80211_SMPS_DYNAMIC; 775 } 776 777 ieee80211_request_smps(vif, smps_mode); 778} 779 780int iwl_mvm_request_statistics(struct iwl_mvm *mvm, bool clear) 781{ 782 struct iwl_statistics_cmd scmd = { 783 .flags = clear ? cpu_to_le32(IWL_STATISTICS_FLG_CLEAR) : 0, 784 }; 785 struct iwl_host_cmd cmd = { 786 .id = STATISTICS_CMD, 787 .len[0] = sizeof(scmd), 788 .data[0] = &scmd, 789 .flags = CMD_WANT_SKB, 790 }; 791 int ret; 792 793 ret = iwl_mvm_send_cmd(mvm, &cmd); 794 if (ret) 795 return ret; 796 797 iwl_mvm_handle_rx_statistics(mvm, cmd.resp_pkt); 798 iwl_free_resp(&cmd); 799 800 if (clear) 801 iwl_mvm_accu_radio_stats(mvm); 802 803 return 0; 804} 805 806void iwl_mvm_accu_radio_stats(struct iwl_mvm *mvm) 807{ 808 mvm->accu_radio_stats.rx_time += mvm->radio_stats.rx_time; 809 mvm->accu_radio_stats.tx_time += mvm->radio_stats.tx_time; 810 mvm->accu_radio_stats.on_time_rf += mvm->radio_stats.on_time_rf; 811 mvm->accu_radio_stats.on_time_scan += mvm->radio_stats.on_time_scan; 812} 813 814static void iwl_mvm_diversity_iter(void *_data, u8 *mac, 815 struct ieee80211_vif *vif) 816{ 817 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 818 bool *result = _data; 819 int i; 820 821 for (i = 0; i < NUM_IWL_MVM_SMPS_REQ; i++) { 822 if (mvmvif->smps_requests[i] == IEEE80211_SMPS_STATIC || 823 mvmvif->smps_requests[i] == IEEE80211_SMPS_DYNAMIC) 824 *result = false; 825 } 826} 827 828bool iwl_mvm_rx_diversity_allowed(struct iwl_mvm *mvm) 829{ 830 bool result = true; 831 832 lockdep_assert_held(&mvm->mutex); 833 834 if (num_of_ant(iwl_mvm_get_valid_rx_ant(mvm)) == 1) 835 return false; 836 837 if (mvm->cfg->rx_with_siso_diversity) 838 return false; 839 840 ieee80211_iterate_active_interfaces_atomic( 841 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 842 iwl_mvm_diversity_iter, &result); 843 844 return result; 845} 846 847int iwl_mvm_update_low_latency(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 848 bool value) 849{ 850 struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif); 851 int res; 852 853 lockdep_assert_held(&mvm->mutex); 854 855 if (mvmvif->low_latency == value) 856 return 0; 857 858 mvmvif->low_latency = value; 859 860 res = iwl_mvm_update_quotas(mvm, false, NULL); 861 if (res) 862 return res; 863 864 iwl_mvm_bt_coex_vif_change(mvm); 865 866 return iwl_mvm_power_update_mac(mvm); 867} 868 869static void iwl_mvm_ll_iter(void *_data, u8 *mac, struct ieee80211_vif *vif) 870{ 871 bool *result = _data; 872 873 if (iwl_mvm_vif_low_latency(iwl_mvm_vif_from_mac80211(vif))) 874 *result = true; 875} 876 877bool iwl_mvm_low_latency(struct iwl_mvm *mvm) 878{ 879 bool result = false; 880 881 ieee80211_iterate_active_interfaces_atomic( 882 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 883 iwl_mvm_ll_iter, &result); 884 885 return result; 886} 887 888struct iwl_bss_iter_data { 889 struct ieee80211_vif *vif; 890 bool error; 891}; 892 893static void iwl_mvm_bss_iface_iterator(void *_data, u8 *mac, 894 struct ieee80211_vif *vif) 895{ 896 struct iwl_bss_iter_data *data = _data; 897 898 if (vif->type != NL80211_IFTYPE_STATION || vif->p2p) 899 return; 900 901 if (data->vif) { 902 data->error = true; 903 return; 904 } 905 906 data->vif = vif; 907} 908 909struct ieee80211_vif *iwl_mvm_get_bss_vif(struct iwl_mvm *mvm) 910{ 911 struct iwl_bss_iter_data bss_iter_data = {}; 912 913 ieee80211_iterate_active_interfaces_atomic( 914 mvm->hw, IEEE80211_IFACE_ITER_NORMAL, 915 iwl_mvm_bss_iface_iterator, &bss_iter_data); 916 917 if (bss_iter_data.error) { 918 IWL_ERR(mvm, "More than one managed interface active!\n"); 919 return ERR_PTR(-EINVAL); 920 } 921 922 return bss_iter_data.vif; 923} 924 925unsigned int iwl_mvm_get_wd_timeout(struct iwl_mvm *mvm, 926 struct ieee80211_vif *vif, 927 bool tdls, bool cmd_q) 928{ 929 struct iwl_fw_dbg_trigger_tlv *trigger; 930 struct iwl_fw_dbg_trigger_txq_timer *txq_timer; 931 unsigned int default_timeout = 932 cmd_q ? IWL_DEF_WD_TIMEOUT : mvm->cfg->base_params->wd_timeout; 933 934 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS)) 935 return iwlmvm_mod_params.tfd_q_hang_detect ? 936 default_timeout : IWL_WATCHDOG_DISABLED; 937 938 trigger = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_TXQ_TIMERS); 939 txq_timer = (void *)trigger->data; 940 941 if (tdls) 942 return le32_to_cpu(txq_timer->tdls); 943 944 if (cmd_q) 945 return le32_to_cpu(txq_timer->command_queue); 946 947 if (WARN_ON(!vif)) 948 return default_timeout; 949 950 switch (ieee80211_vif_type_p2p(vif)) { 951 case NL80211_IFTYPE_ADHOC: 952 return le32_to_cpu(txq_timer->ibss); 953 case NL80211_IFTYPE_STATION: 954 return le32_to_cpu(txq_timer->bss); 955 case NL80211_IFTYPE_AP: 956 return le32_to_cpu(txq_timer->softap); 957 case NL80211_IFTYPE_P2P_CLIENT: 958 return le32_to_cpu(txq_timer->p2p_client); 959 case NL80211_IFTYPE_P2P_GO: 960 return le32_to_cpu(txq_timer->p2p_go); 961 case NL80211_IFTYPE_P2P_DEVICE: 962 return le32_to_cpu(txq_timer->p2p_device); 963 default: 964 WARN_ON(1); 965 return mvm->cfg->base_params->wd_timeout; 966 } 967} 968 969void iwl_mvm_connection_loss(struct iwl_mvm *mvm, struct ieee80211_vif *vif, 970 const char *errmsg) 971{ 972 struct iwl_fw_dbg_trigger_tlv *trig; 973 struct iwl_fw_dbg_trigger_mlme *trig_mlme; 974 975 if (!iwl_fw_dbg_trigger_enabled(mvm->fw, FW_DBG_TRIGGER_MLME)) 976 goto out; 977 978 trig = iwl_fw_dbg_get_trigger(mvm->fw, FW_DBG_TRIGGER_MLME); 979 trig_mlme = (void *)trig->data; 980 if (!iwl_fw_dbg_trigger_check_stop(mvm, vif, trig)) 981 goto out; 982 983 if (trig_mlme->stop_connection_loss && 984 --trig_mlme->stop_connection_loss) 985 goto out; 986 987 iwl_mvm_fw_dbg_collect_trig(mvm, trig, "%s", errmsg); 988 989out: 990 ieee80211_connection_loss(vif); 991} 992